Nuclear & Particle Physics Seminar

February 17, 2020 - 1:30pm to 2:30pm
618 VAN

Dr. Ryo Sakai;  Department of Physics & Astronomy;  University of Iowa

“Graph-independent local truncations for fermion tensor networks” 

Abstract: Renormalization of tensor networks allows us to effectively compute partition functions and physical quantities in a non-stochastic manner, and this is a promising direction to overcome the notorious complex action problem in lattice field theories. However, the tensor renormalization group method sometimes gives wrong fixed points that are physically irrelevant. To provide proper renormalization flows, some improved algorithms have been proposed so far. In this talk we discuss a new method that is called graph-independent local truncations and its application to a fermion tensor network.